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Iowa ZIP Codes
Louisa County
Oakville, IA
52646
52646 ZIP Code — Oakville, IA
Louisa County, Iowa
ZIP code 52646 is located in
Oakville ,
Iowa ,
within Louisa County .
It covers approximately 53.60 square miles and serves a population of
293 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 319 .
About ZIP code 52646
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $132,800. Owner-occupancy is high at 93%, well above the national average.
Median household income is $61,250. Poverty affects 28% of residents, above the national average. SNAP benefit usage at 19% of households reflects economic stress in the area. 49% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is production, transportation, and material moving, with agriculture and mining as the leading industry. The average commute of 23 minutes is near the national average.
Notable community characteristics include a notable veteran presence at 18% of civilians, above the national average of 7%; and disability rates above the national average at 28%.
Overall, ZIP code 52646 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a strong veteran community, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.
52646 ZIP code map
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Cities in ZIP code 52646
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
293
Population density
5 / sq mi
State FIPS
19
County FIPS
115
Geography
Land area
53.60 sq mi
Water area
5.66 sq mi
Latitude
41.0760
Longitude
-91.0320
Timezone
Central (CT)
Area code
319
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
40.8%
39.2%
40.1%
$50k – $100k
49.7%
36.2%
33.4%
$100k – $200k
9.5%
20.8%
21.5%
Over $200k
0.0%
3.8%
5.0%
Demographics & statistics
$61,250
Median household income
$132,800
Median home value
Age distribution
Age summary
Group Count % Under 18 53 18.1% 18 and over 240 81.9% 65 and over 96 32.8% Median age 53.9 years
Race & ethnicity
Group Count % White 268 91.5% Two or more races 25 8.5%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
40.8%
39.2%
40.1%
$50k – $100k
49.7%
36.2%
33.4%
$100k – $200k
9.5%
20.8%
21.5%
Over $200k
0.0%
3.8%
5.0%
Range % of households Under $10k 11.2% $10k–$15k 4.5% $15k–$25k 3.7% $25k–$35k 14.2% $35k–$50k 12.7% $50k–$75k 11.2% $75k–$100k 22.4% $100k–$150k 13.4% $150k–$200k 6.7% Median income $61,250
Housing
Housing overview
Metric Value Median home value $132,800 Median rent / month $775 Owner occupied 93.3% Renter occupied 6.7% Vacant 0.7% Single-family detached 90.4% Large apartment buildings 0.0% Mobile homes 7.4% Median rooms 6.7 Avg household size (owned) 2.12
Year built
Era % 2020 or later 0.0% 2010–2019 3.0% 2000–2009 7.4% 1990–1999 16.3% 1980–1989 2.2% 1970–1979 3.0% 1960–1969 26.7% 1950–1959 0.0% 1940–1949 2.2% 1939 or earlier 39.3%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 8.9% 2 bedrooms 6.7% 3 bedrooms 64.4% 4 bedrooms 7.4% 5+ bedrooms 12.6%
Vehicles per household
Vehicles % of households No vehicle 0.0% 1 vehicle 22.4% 2 vehicles 67.2% 3 or more 10.4%
Heating fuel
Fuel type % Utility gas 39.6% Electricity 18.7% Propane / LP gas 33.6% Wood 1.5% No fuel used 6.0%
Households & families
Household type Count % Married-couple family 70 52.2% Cohabiting couple 10 7.5% Male householder, no spouse 32 23.9% Female householder, no spouse 22 16.4% Households with children under 18 31 23.1% Households with seniors (65+) 66 49.3% Average household size 2.19
Marital status
Status Male Female Never married 20.3% 11.2% Married 51.9% 59.5% Separated 0.0% 10.3% Widowed 6.8% 10.3% Divorced 21.1% 8.6%
Education
Some college, no degree
42.2%
Graduate / professional
0.0%
Metric % HS diploma or higher 90.8% Bachelor's or higher 1.8%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 8 16.7% Kindergarten 6 12.5% Elementary school 21 43.8% High school 13 27.1% College / grad school 0 0.0%
Employment
Industry of employment
Transportation & utilities
21.7%
Agriculture & mining
18.5%
Education & healthcare
12.0%
Public administration
7.6%
Professional & management
2.2%
Finance & real estate
1.1%
Arts, food & hospitality
1.1%
Occupation
Category % Management, business & arts 14.1% Service 9.8% Sales & office 18.5% Natural resources & construction 19.6% Production & transportation 38.0%
Employment type
Type % Private sector 81.5% Government 12.0% Self-employed 6.5% Unpaid family workers 0.0%
Commute
Method % Drive alone 64.1% Carpool 8.7% Public transit 0.0% Walk 8.7% Work from home 13.0% Other means 5.4% Avg commute (minutes) 23.0
Poverty
Married-couple families
18.6%
Female-led households
37.5%
Income support
Source % of households Social Security 49.3% Retirement income 31.3% Supplemental Security 8.2% Cash public assistance 1.5% Food stamps / SNAP 18.7%
Health indicators
Condition % Obesity 35.6% High blood pressure 31.4% High cholesterol 31.4% Diabetes 9.2% Heart disease 6.1% Stroke 2.8% Asthma 9.7% Arthritis 23.5% Kidney disease 2.7% Pulmonary disease 6.7% Cancer 6.7%
Behavior / access % Smoking 18.9% Binge drinking 23.1% No physical activity 23.0% Less than 7 hrs sleep 31.2% Depression 18.6% Fair or poor health 12.4% Poor mental health 14.3% Poor physical health 9.5% No health insurance 9.7% Visited doctor (checkup) 73.9% Visited dentist 66.6% Cholesterol screening 87.5% Teeth loss 12.6%
Veterans & disability
Veterans Count % Civilian veterans 42 17.5%
Disability % Any disability 27.6% Under 18 1.9% 18–64 years 10.4% 65 and over 67.7%
Health insurance coverage
Type % Private insurance 58.7% Public insurance 71.0% No insurance 5.8% Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 276 94.2% Spanish 0 0.0% Other Indo-European 0 0.0% Asian & Pacific Islander 0 0.0% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 292 99.7% Born in same state 292 99.7% Born in different state 255 87.0% Foreign born 0 0.0% Naturalized citizen 1 0.3% Not a US citizen 1 100.0%
Ancestry
Ancestry Count % French 44 15% Italian 37 12.6% Arab 23 7.8%
Ancestry Count % Polish 22 7.5% English 16 5.5% German 1 0.3%
Technology access
Metric % of households Computer access 45.7% Internet access 91.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 52646
What city is ZIP code 52646 in?
ZIP code 52646 is primarily assigned to Oakville, Iowa.
What county is ZIP code 52646 in?
ZIP code 52646 falls within Louisa County, Iowa.
Does ZIP code 52646 have an older population?
33% of residents in ZIP code 52646 are 65 or older, above the national average of ~17%.
What is the poverty rate in ZIP code 52646?
28% of residents in ZIP code 52646 live below the poverty line, above the national average.
Is ZIP code 52646 mostly owner-occupied?
93% of occupied units in ZIP code 52646 are owner-occupied, well above the national average.
Does ZIP code 52646 have a large retiree population?
49% of households in ZIP code 52646 receive Social Security income, suggesting a significant retiree or disability population.
What timezone is ZIP code 52646 in?
ZIP code 52646 observes the CST timezone.
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